High Speed Steel Extended Twist Drill Bits 3mm Drill Dia. 250mm Length 4 Pcs Knurled Thumb Nuts It is sturdy and durable

It is sturdy and durable for long-time using

Made of durable iron material

Dynamic Load Rating (Cr): 1712 N

Advantages: The welded solid ring is suitable for hanging objects

For a tight fit

High Speed Steel Extended Twist Drill Bits 3mm Drill Dia. 250mm Length 4 Pcs Knurled Thumb Nuts It is sturdy and durableDescription 1. Made of high speed steel. HSS(High Speed Steel) enables the drill body harder and can keep a longer drilling life. 2. With the twisted design, it can improve cutting accuracy by centering the tip. It can avoid displacement of the drill bit during work, and at the same time remove debris and particles faster and easier. 3. Suitable for processing non ferrous metals, such as copper and aluminum, and also suitable for hard plastics. When